A recent version of the GCC development tools is required for running OpenInterface. Please refer to the installation page for your operating system to set it up.
If you plan to integrate Java components, you will need to install a recent release of the Java Development Kit (JDK). Note that the Java Runtime Environment (JRE) will not suffice, as you will need to compile the Java components. Please visit java.sun.com/javase/downloads/index.jsp if you need a JDK.
If you plan to integrate Matlab components, you will need to install a recent release of Matlab. You can buy one from Mathworks.